To understand MOTION, you need to understand the following:
speed = how fast something is moving
i.e. distance travelled - displacement - over time taken
Speed is a measure of the distance an object travels in a
given length of time
: speed is a SCALAR quantity
VELOCITY = how fast something is moving + THE direction IT IS MOVING IN
average velocity =
velocity is a VECTOR quantity
acceleration
Acceleration
Speed and velocity only deal with movement at a constant rate. When we speed up, slow down, or change direction, we want to know our acceleration. Acceleration is a vector quantity that measures the rate of change of the velocity vector with time:average acceleration = SPEED & ACCELERATION
To understand MOTION, you need to understand the following:
speed = how fast something is moving
i.e. distance travelled - displacement - over time takenSpeed is a measure of the distance an object travels in a
given length of time
:
speed is a SCALAR quantity
VELOCITY = how fast something is moving + THE direction IT IS MOVING IN
average velocity =
velocity is a VECTOR quantity
acceleration
Acceleration
Speed and velocity only deal with movement at a constant rate. When we speed up, slow down, or change direction, we want to know our acceleration. Acceleration is a vector quantity that measures the rate of change of the velocity vector with time:average acceleration =
SPEED & ACCELERATION